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Air Conditioning Repair and Installation Longmont Colorado

We Fix HVAC Problems, We Don't Upsell

We don't use high-pressure sales tactics.  Unlike many larger furnace & AC repair companies in Colorado that pay their technicians on commission.  Our business is solely focused on creating HVAC customers for life.  So our only incentive is to provide you honest, reliable, and fast service. 

Longmont HVAC Service & Furnace Repair

For excellent HVAC solutions, consult the experts of Tri County Heating & Cooling. Because of the professional and high-quality work we give clients, we have earned a reputation as a reliable furnace and AC repair contractor in Longmont, CO. We are experienced in various residential and commercial HVAC systems and our services include repair, maintenance, and installation.

Financing Available

Knowledge, reliability, and competitive rates set us apart from other heating and cooling service providers in the Longmont area. Our first priority is to listen to your problem and diagnose a solution that fits your needs, not ours.  Most of the bigger companies have sales people that try and "diagnose" your system.  We only send certified and trained technicians to your home and the difference is we repair a vast majority of the AC and furnace systems we look at.  On too many occassions the sales people don't "diagnose" they are finding a reason to try and sell you a new unit.  Our goal is to give you the best recommendations based off the information that our technicians come up with after a thorough examination. If you are interested in discussing your furnace or AC concerns then please give us a call. One of our knowledgeable representatives will assist you.

HVAC Services


Get your air conditioner serviced today with a NATE certified technician.


Have us install a new high-efficiency Air Conditioner or Furnace System.


Keep your HVAC system at peak performance with a maintenance agreement.

We LOVE Harvey and everyone at Tri County Heating & Cooling! Harvey does great work and has come to our rescue on numerous occasions both at our home and our business. We definitely keep him busy and he does a great job every time! Highly recommend him!
Alexis Kochevar
Longmont, CO

Service Areas

Longmont, Berthoud, Niwot, Frederick, Firestone, Loveland, Greeley

Preventative Maintenance

Comfort is in your future with our preventative maintenance program.